thanks to you for being with us. do stay with us if you can on "bbc world news." more to come. the hudson bay and mineral riches beneath the polar ice cap. first though, that booming chinese economy is having an unwelcome side effects. one generation ago, hardly anyone was overweight, and now, nearly one in two is overweight. we have this report. >> this is a 12-year-old. he is obese, weighing 40 kilograms more than he should. he has been sent to this clinic to lose weight. there are traditional chinese treatments of massage and acupuncture. like many in china, -- some say these children are spoiled, -- he says he does not do anything around the home. he just enjoys himself. the family's youngest member could once eat whatever he likes, sometimes two helpings, but now, he is on a strict diet of fruit and vegetables. across china, helping people to lose weight. it is a strict regime of exercise, healthy eating, and medical treatments. being overweight is not just a problem for the people here. it is also a problem for society at large. if you're overweight, you are more likely t